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\begin{tabular}{lcccccc} \hline
 & (1) & (2) & (3) & (4) & (5) & (6) \\
VARIABLES & Ln Employment over parcel size & Ln Employment over parcel size - Montreal Roll & Ln Employment over parcel size - Montreal Roll & ratio & ratio\_bis & ratio\_bis \\ \hline
 &  &  &  &  &  &  \\
Ln Population density 500m &  &  & 0.198$^a$ &  &  & 0.087$^b$ \\
 &  &  & (0.035) &  &  & (0.035) \\
Distance to the closest city centre & -0.037$^a$ & -0.056$^a$ & -0.039$^a$ & -0.039$^a$ & -0.057$^a$ & -0.049$^a$ \\
 & (0.009) & (0.010) & (0.011) & (0.009) & (0.011) & (0.011) \\
cat0==2 & 1.107$^a$ & 1.114$^a$ & 0.842$^a$ & 0.479$^a$ & 0.484$^a$ & 0.365$^a$ \\
 & (0.077) & (0.088) & (0.093) & (0.072) & (0.093) & (0.099) \\
cat0==3 & -0.337$^b$ & -0.268 & -0.267 & -0.019 & 0.053 & 0.055 \\
 & (0.154) & (0.212) & (0.209) & (0.125) & (0.204) & (0.201) \\
Ln Employment & 0.637$^a$ & 0.611$^a$ & 0.643$^a$ & -0.087$^a$ & -0.114$^a$ & -0.099$^a$ \\
 & (0.028) & (0.033) & (0.032) & (0.026) & (0.034) & (0.034) \\
hoffice==2 & 0.241$^b$ & 0.344$^a$ & 0.321$^a$ & 0.071 & 0.183 & 0.172 \\
 & (0.098) & (0.116) & (0.112) & (0.100) & (0.128) & (0.127) \\
exports==2 & -0.076 & -0.144$^c$ & -0.140$^c$ & -0.050 & -0.128 & -0.126 \\
 & (0.068) & (0.083) & (0.082) & (0.063) & (0.090) & (0.090) \\
\\# functions in the estab. & 0.230$^a$ & 0.177$^b$ & 0.155$^b$ & 0.154$^b$ & 0.101 & 0.091 \\
 & (0.063) & (0.071) & (0.070) & (0.073) & (0.089) & (0.089) \\
\\# 4-digit NAICS & -0.140$^a$ & -0.082$^c$ & -0.075 & -0.061 & 0.000 & 0.003 \\
 & (0.042) & (0.049) & (0.046) & (0.045) & (0.054) & (0.053) \\
\\# products & 0.021 & 0.008 & 0.007 & 0.014 & -0.000 & -0.001 \\
 & (0.016) & (0.019) & (0.018) & (0.017) & (0.021) & (0.021) \\
Ln Distance to major airport & 0.245$^a$ & 0.299$^a$ & 0.097 & 0.177$^a$ & 0.236$^a$ & 0.147$^c$ \\
 & (0.052) & (0.059) & (0.069) & (0.051) & (0.064) & (0.076) \\
Ln Distance to freight station & -0.023 & -0.025 & -0.115$^c$ & -0.193$^a$ & -0.199$^a$ & -0.239$^a$ \\
 & (0.045) & (0.058) & (0.062) & (0.044) & (0.070) & (0.072) \\
Ln Distance to junction & 0.087$^b$ & 0.021 & -0.015 & 0.081$^b$ & 0.016 & -0.000 \\
 & (0.034) & (0.041) & (0.040) & (0.039) & (0.048) & (0.049) \\
 &  &  &  &  &  &  \\
Observations & 1,041 & 1,041 & 1,041 & 1,028 & 1,028 & 1,028 \\
R-squared & 0.636 & 0.546 & 0.570 & 0.341 & 0.278 & 0.284 \\
 r2\_p & . & . & . & . & . & . \\ \hline
\multicolumn{7}{c}{ Robust standard errors in parentheses} \\
\multicolumn{7}{c}{ $^a$ p$<$0.01, $^b$ p$<$0.05, $^c$ p$<$0.1} \\
\end{tabular}
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